From: Daniel Scheller <d.scheller.oss@gmail.com>
To: linux-media@vger.kernel.org, mchehab@kernel.org,
mchehab@s-opensource.com
Cc: r.scobie@clear.net.nz, jasmin@anw.at, d_spingler@freenet.de,
Manfred.Knick@t-online.de, rjkm@metzlerbros.de
Subject: [PATCH v3 09/12] [media] ddbridge: fix impossible condition warning
Date: Wed, 9 Aug 2017 22:31:25 +0200 [thread overview]
Message-ID: <20170809203128.31476-10-d.scheller.oss@gmail.com> (raw)
In-Reply-To: <20170809203128.31476-1-d.scheller.oss@gmail.com>
From: Daniel Scheller <d.scheller@gmx.net>
Smatch and gcc complained:
drivers/media/pci/ddbridge/ddbridge-core.c:3491 bpsnr_show() warn: impossible condition '(snr[0] == 255) => ((-128)-127 == 255)'
drivers/media/pci/ddbridge/ddbridge-core.c: In function ‘bpsnr_show’:
drivers/media/pci/ddbridge/ddbridge-core.c:3491:13: warning: comparison is always false due to limited range of data type [-Wtype-limits]
Fix this by changing the type of snr to unsigned char.
Cc: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Tested-by: Richard Scobie <r.scobie@clear.net.nz>
Tested-by: Jasmin Jessich <jasmin@anw.at>
Tested-by: Dietmar Spingler <d_spingler@freenet.de>
Tested-by: Manfred Knick <Manfred.Knick@t-online.de>
---
drivers/media/pci/ddbridge/ddbridge-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/pci/ddbridge/ddbridge-core.c b/drivers/media/pci/ddbridge/ddbridge-core.c
index ba2a2d987430..1ec3782a6c88 100644
--- a/drivers/media/pci/ddbridge/ddbridge-core.c
+++ b/drivers/media/pci/ddbridge/ddbridge-core.c
@@ -2992,7 +2992,7 @@ static ssize_t bpsnr_show(struct device *device,
struct device_attribute *attr, char *buf)
{
struct ddb *dev = dev_get_drvdata(device);
- char snr[32];
+ unsigned char snr[32];
if (!dev->i2c_num)
return 0;
--
2.13.0
next prev parent reply other threads:[~2017-08-09 20:31 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-09 20:31 [PATCH v3 00/12] ddbridge: bump to ddbridge-0.9.29 Daniel Scheller
2017-08-09 20:31 ` [PATCH v3 01/12] [media] ddbridge: bump ddbridge code to version 0.9.29 Daniel Scheller
2017-08-09 20:31 ` [PATCH v3 02/12] [media] ddbridge: split I/O related functions off from ddbridge.h Daniel Scheller
2017-08-09 20:31 ` [PATCH v3 03/12] [media] ddbridge: split off IRQ handling Daniel Scheller
2017-08-09 20:31 ` [PATCH v3 04/12] [media] ddbridge: split off hardware definitions and mappings Daniel Scheller
2017-08-09 20:31 ` [PATCH v3 05/12] [media] ddbridge: check pointers before dereferencing Daniel Scheller
2017-08-09 20:31 ` [PATCH v3 06/12] [media] ddbridge: only register frontends in fe2 if fe is not NULL Daniel Scheller
2017-08-09 20:31 ` [PATCH v3 07/12] [media] ddbridge: fix possible buffer overflow in ddb_ports_init() Daniel Scheller
2017-08-09 20:31 ` [PATCH v3 08/12] [media] ddbridge: remove unreachable code Daniel Scheller
2017-08-09 20:31 ` Daniel Scheller [this message]
2017-08-09 20:31 ` [PATCH v3 10/12] [media] ddbridge: fix dereference before check Daniel Scheller
2017-08-09 20:31 ` [PATCH v3 11/12] [media] ddbridge: Kconfig option to control the MSI modparam default Daniel Scheller
2017-08-09 20:31 ` [PATCH v3 12/12] [media] MAINTAINERS: add entry for ddbridge Daniel Scheller
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